Centrifugal cream-separator.



J. H. FLEMING. CENTRIFUGAL CREAM SEPABATOR.

(Application filed Jan. 10, 1900.; (No Model.)

2 sheets -sheetl.

WITNESSES: INVENTOR:

BY MW)?! W TTORNEY S m: Nonms mans co Puo'rourna. WASHINGTON, a. c.

Patented Jan. 22, l90l.

Patented Jan. 22,- |90I.

J. H. FLEMING.

CENTRIFUGAL CREAM SEPARATOR.

(Application filed Jan. 16. 1900.

2 Shoets-Sheet 2.

(No Model.)

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Marten States ATE JAMES H. FLEMING, OF NEWARK, NEW JERSEY, ASSIGNOR TO THE NATIONAL DAIRY MACHINE COMPANY, OF NE\V JERSEY.

CENTRIFUGAL CREAivi-SEPARATOR.

SJPEGHIGATIGN forming part of Letters Patent No. 666,344, dated January 22, 1901.

Application filed January 16, 1900. Serial No. 1.601. (No model.)

To all whom it may concern: ing or passage, through which the whole or Be it known that I, JAMES H. FLEMING, a new milk is supplied, and with exit ducts or citizen of the United States, residing at Newpassages 61 e for the cream and blue or skim ark, in the county of Essex and State of New milk. These also may be arranged in any Jersey, have invented certain new and useful manner convenient.

Improvements in Cr-eamfieparating Devices In connection with the central opening or for Centrifugal Greamers; and I do hereby inpassage I provide a feed-tube f, which lies declare the following to be a full, clear, and vertically at the axis of the bowl and extends exact description of the invention, such as downward from the central opening of the I0 will enable others skilled in the art to which cover to a point at or near the bottom, where it appertains to make and use the same, referit is provided with a horizontal disk or plate ence being had to the accompanying drawg. Said disk or plate is perforated atits cenings, and to letters of reference marked thereter to receive said tube and is of a diameter on, which form a part of this specification. equaling or nearly equaling the horizontal 15 The objects of this invention are to reduce diameter of the interior of the bowl, so as to the body of fluid stored in the separatingfit therein closely. On the under side of the bowl during the separating operations, and said disk the same is provided with supports thus to economize power in effecting the deh, adapted to hold said disk a little up from sired separation without at the same time rethe bottom to form a flow-passageil from the 20 ducing the separating capacity of the bowl bottom end of the feed-tubefoutward. At or impairingits efficiency, and to secure other or near its periphery the said disk is perfoadvantages and results, some of which may rated or notched at a number of points, as at be referred to hereinafter in connection with j, to permit an upflow of fiuid at the point the description of the working parts. where the centrifugal force is great. Ex-

25 The invention consistsin theiinproved centending upward from said plate or disk 9 in trifugal separating-bowl and in the arrangefrom said opening is a conical plate It, the ments and combinations of parts of the same, lower edge of which is fastened to the plate all substantially as will be hereinafter set or disk gand the edge at the upper end being forth and finally embraced in the clauses of fastened around the feed or supply tubef c the claim. near its top. The joints where the hollow Referring to the accompanying drawings, cone it connects with the disk or plate 9 and in which like letters of reference indicate cortubefare made impervious by solder, tinning, responding parts in each of the several views, or otherwise, so that no liquid can enter the Figure l is a vertical section of the bowl, chamber Z, and thus the bowl remains empty 5 taken through the axis thereof; and Fig. 2 is at the point where the separation is least et'- a horizontal section taken at line a, Fig. 1. fective, so that the weight of fluid to be sup- Fig. 3 is a vertical section of the feed-tube, ported by the bowl, its shaft, and shaft-bearconical partition, and bottom disk taken ings is materially reduced, especially so in through the axial center of the feed-tube and the large machines, all of which conduces to 40 showing a modification of the conical partieconomyof wearand power. Thehollow cone, tion; and Fig. e. is a similar view showing a which extends from the said disk at the botstillfurt-her modified form of partition. Figs. tom up to the top ofsaid bowl, forms, with 5 and 6 are horizontal cross-sections taken on said bowl, which is cylindrical, or with the line y, Fig. 3, and line .2, Fig. 4., respectively. cylindrical partition 'm therein, an annular 45 In said drawings, a indicates a cylindrical chamber, which continues to increase regubowl, of any suitable construction, supported larly in horizontal width and capacity from upon a rotary shaft 1), to which highly-rapid the bottom to the top, the said chamber being motion is imparted by any of the means comvertically open or devoid of partitions, so that mon in centrifugal separators. the cream when once separated from the blue 50 The covercis provided withacentral openmilk may flow directly upward to its exit, [00

through the disk 5 coincide.

while the said blue milk is brought into contact with the partition having protuberances, as hereinafter described.

Outside of and around the hollow cone is arranged a cylindrical partition m, with pro tuberances such as are shown in the patent of Oscar Anderson, No. 576,994, issued February 16, 1897. This partition preferably lies against the inner wall of the bowl a and forms, with the cone in, an upwardly-flaring annular chamber a, with which the passages The new milk upon being fed to the tube flows downward and outward through the flow-passage 'i and thence upward into the small end of the chamber 92, subjected to high centrifugal force, which tends to separate the light fatty globules or particles of cream from the blue milk. The partition 71;, lying toward or inside of the layer or wall formed by the cream near the center of the bowl, serves to hold said cream nearer the outside of the bowl, where it will be subjected to greater centrifugal force and a more thorough and complete separation of the skim-milk obtained. The cream flows or passes upward along the partition 70, which serves as a guide, and ultimately escapes at the top of the bowl through the aperture (Z in the usual manner.

Under some conditions I may prefer to employ a modified form of conical partition in, as shown in Figs. 3 and 5, where the surface of the partition is shown undulating or curved in and out in a circumferential direction. The effect of this construction is to provide greater surface for the cream in order that it may be spread in a thinner layer and better opportunity presented for separation to take place.

In Figs. 4 and 6 I have shown a conical partition k corrugated or provided with protuberances o 0, which extend alternately in and out, as in the cylindrical partition on of the Anderson patent before referred to. The area of the cream wall or layer is thus increased and its upward movement delayed, so that a more thorough separation of the skim-milk is facilitated.

Having thus described the invention, what I claim as new is 1. In a centrifugal separator, the combination with the rotary bowl and a central vertical supply-tube extending from the top of said bowl to near the bottom thereof, of a cone having said tube extended through its apex at the top of the bowl and through its base at the bottom of said bowl, an open passage in communication with said tube being formed at said bottom leading into the separatingchamber between the outside walls of the cone and the inside walls of the bowl, the said cone forming a dead-space within the bowl which increases in horizontal dimensions toward the base of the cone, substantially as set forth.

2. In a centrifugal separator, the combination with the rotary bowl and a central supply-tube extending downward from the top of the bowl to near the bottom thereof, of a conical partition 7t, arranged outside of said tube and connecting with the same at the small end of said partition and a disk y, connecting the lower end of the tube with the large end of the conical partition, the tube, conical partition and disk forming a dead hollow space about the tube which gradually increases in horizontal area from near the top to near the bottom of the bowl, substantially as set forth.

3. In a centrifugal separator, the combination with the rotary bowl, and a central supply-tube extending downward from the top of the bowl to near the bottom thereof, of a conical partition 70, arranged outside of said tube and connecting with the same at the small end of said partition and a disk g, connecting the lower end of the tube with the large end of the conical partition, the tube, conical partition and disk forming a dead hollow space about the tube which gradually increases in horizontal area from near the top to near the bottom of the bowl, and a cylindrical partition an, arranged outside of the conical partition and having its surface broken by protuberances, substantially as set forth.

4. In a centrifugal separator, the combination with the rotary bowl, and a central supply-tube extending downward from the top of the bowl to near the bottom thereof, of a conical partition 70, arranged outside of said tube and connecting with the same at the small end of said partition and a disk g, connecting the lower end of the tube with the large end of the conical partition, the tube, conical partition and disk forming a dead hollowspace about the tube which gradually increases in horizontal area from near the top to near the bottom of the bowl, and a cylindrical partition, m, arranged near the inside wall of the bowl, the partitions m and 70, forming a graduated space between, which increases in horizontal area from near the bottom to near the top of the bowl and which space provides an open upflow-passage for the cream, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 9th day of September, 1899.

JAMES H. FLEMING.

Witnesses:

CHARLES H. PELL, O. B. PITNEY. 

